St Mary’s church has been described as one of the best examples of a church built in the Perpendicular style in Norfolk. Building had already started prior to the death of Sir Ralph Shelton in 1497, who ordered in his will that it should be finished “as it was begun”. Much of the original glazing survives, although as has happened in so many churches, most of it has been subject to rearrangement. There is also some speculation that some of the glass panels were inserted from the private chapel at the Hall when this building was destroyed whilst others may be foreign panels inserted at a later date. The early 16th century glass is mainly secular with many small donor figures. There are also many shields, representing the Shelton family connection and a repeated use of the Shelton rebus i.e a shell on a tun, or barrel. The most important glass is now found in the three east windows.